Throw pillows are the perfect pieces of décor that can bring color, lushness and interesting pattern to any room of the house.
A couch, armchair, bed or chair is not ready until you throw an interesting eye-catching pillow on it! Decorative throw pillows come in various shapes and sizes. Down below we have sources the most common shapes of throw pillows. 
The Euro is a square pillow used decoratively on beds. The Standard, Queen and King pillows are for sleeping and support. Patterned and textured standard pillows add a decorative element to the bed.
The Lumbar pillow is traditionally for your back’s support, on a chair or armchair. However, lumbar pillows have been used as perfect décor for couches and beds too!
Like the lumbar pillow, the Bolster pillow is a cylindrical shaped pillow used as back and arm support or decorative purposes. They’re perfect for armchairs and couches.
Square throw pillows are the most common and used everywhere! They also come in durable materials for outdoor furniture and chairs.
Round pillows add a cute unique touch to any furnishing. The ones which come with striking textures such as crochet or velvet, will compliment the other pillow set.
The Knot pillows are fun and quirky, again.. perfect anywhere if you choose the right color!

This selection of beautiful decorative throw pillows can be found on Amazon.com.
Click any picture to buy on Amazon.